7 U.S. Code § 394a - Overtime of employees working at establishments which prepare virus, serum, toxin, and analogous products

The Secretary of Agriculture is authorized to pay employees of the Bureau of Animal Industry employed in establishments subject to the provisions of section
157 of title
21, for all overtime, night, or holiday work performed at such establishments, at such rates as he may determine, and to accept from such establishments wherein such overtime work is performed reimbursement for any sums paid out by him for such overtime work.